Zhenduo Wang


2018

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UMDSub at SemEval-2018 Task 2: Multilingual Emoji Prediction Multi-channel Convolutional Neural Network on Subword Embedding
Zhenduo Wang | Ted Pedersen
Proceedings of the 12th International Workshop on Semantic Evaluation

This paper describes the UMDSub system that participated in Task 2 of SemEval-2018. We developed a system that predicts an emoji given the raw text in a English tweet. The system is a Multi-channel Convolutional Neural Network based on subword embeddings for the representation of tweets. This model improves on character or word based methods by about 2%. Our system placed 21st of 48 participating systems in the official evaluation.

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ALANIS at SemEval-2018 Task 3: A Feature Engineering Approach to Irony Detection in English Tweets
Kevin Swanberg | Madiha Mirza | Ted Pedersen | Zhenduo Wang
Proceedings of the 12th International Workshop on Semantic Evaluation

This paper describes the ALANIS system that participated in Task 3 of SemEval-2018. We develop a system for detection of irony, as well as the detection of three types of irony: verbal polar irony, other verbal irony, and situational irony. The system uses a logistic regression model in subtask A and a voted classifier system with manually developed features to identify ironic tweets. This model improves on a naive bayes baseline by about 8 percent on training set.